Knockdown revolving table



G. L DAHL.

KNOCKDOWN REVOLVING TABLE.

APPLICATION nuznvgzw. s, 1921.

1,428,275 4 Patented Sept. 5, 1922.

; rimary object of rny invention is a combination iinprovedeknockedownerevolvlng ta price to the-user; Y e

Patented Sept. 5, 1922.

jcrus'rJ; DAHL, or srurnv rsrnnn'mnnnironyor ALAsKA.

KNOCKDOWN REVOLVING TABLE.

a y-llpplication filed September 6, 1 921 r-LSer-ia1Ne. 498,904.

mdyconcrnr l Be it1known that I, G ST J.

zen LofthelUn-ited States, "residing at Spuhn Island, in ,thevTerritory/of Alaska, have invented an improved and-useful Knockdown lrg Table, of whi'ch the following is a specification. r r v This invention relatesito tables, and the blethat can loe constructed-in a vpractical andf sub stantial manner, ,yet of light vweight, without .arms,,bea'ms and, frames and that canreadily be kept clean" and sanitary, and

thati will avoid the inconvenlences such "as special table-cloths, and thenecessity of tak-v ing apart various devicesfore-the exchanglng of the tab-le cloths, etc, which generally ac- ;con pan-y the use of self-waitingtables. Furthermqlie, the. object is sought, l to obta n a combinationdmproved-knock-down-revolving-table thatcan: he easily, simply,- and economically;manufactured, but that w11l be i durable,efficienueasily moveahle, useful for,

different purposes, and, saleable: at a. low sMy'invention consists of an improved double Ztahlein which, one table or table top wwisfsuperimp osed over another', and to the underneathsurfaceof thejlower. table are fastened four 'metal; flanges, into which metalileg's or standards are screwed. For the purposes of acquiring.substantiality, without g the necessity of uslng arms, heams or frames, 35

the lower table is "cross-veneered in such manner that two layers of wood are securelyrevolving "table" is made substantial without the use of arms, beams :andframes oythe installation of atrim; of wood or other sub-' stanti'al material in a groove to the depth of one-half inch: on the. under surface o'f the I upper table and at a distance 'ofone inch, from its, perimeter, and :a :moldin-g is fast-i ferent views.

enedii placein' the,space hetweenthe edge DAHL, a c1t1- thelower tablerand the mechanisms v. I

. Figur'eyI iS a perspective, :view, of, m

H .55 of the upper table and said rimfwhich pres v vents cracking and splitting; Thisrim thus serves'to strengthen and make .the upper? table substantial, and-toconceal froniview r 'i 6O p I yin-1 vention, supported; on four short metal legs or standar dswith rubber tips, standing 1n place :ready for use on 1 an ordinary dining table, Figure 11 is a vertical view ofithe table as it appears (when put ill half. Figure 111- is a. top view of. thejupper side-ofthelower 7; table. Similar reference figures rand numerals designate "similar parts in the dif- As soon as the placed ojn the marked-sets oflegs or. standards ,of-different lengths will also be marketed, for

use in connection with its operation, which vary ng length of the legs; will afford the I V l e I user a cho ce as to ,the height-'thathe desires 1 the revolving table tofco ne above the su-r-:-

face of the diningtableor otherohject on; 2

whi-cli'it is-placed. {The legs'or standards,"

are; so constructed that-,th'eycan he easily removed and one set: -interchanged;for an-" other set offdifierent length, a11,d th r talole converted. from a lowtableto ,a high table, s

or 'fvice versa; in "aiifvery few; minutes; withoutiany "laborious 'efiort. In useythei set of legsof one inch length would place: the; revolving tahle in a position "where;

it wouldpractically rest upon, thesurface". v of ,the dining, table,- for other object on which? it was placed, and would render un-- usable. the space that will otherwise exist. between the revolving table and the surface 1 o'f the'dinin'gtable orother object on which placed, as, for instance, when the set .of legs offour lnch' length are used. i-lVhe-n' used 111 conjunction with :a dining, table six feet in vdiameter theirevolving table should'r'he three and one-half feet indiametei; thus leaving a free fifteeninch space arofundthe;

perimeter-T of the dining table on which the plates,-dishes, etc, actually used-by the diner ,ma'y rernain in'a stationary 'position,=.;as on an OI'dlIlflIYudiDlIlQ' 'tahle;"whereas,- such" 1 dishes, either' with or without fo0d, w-hich arefordinarily passed or'handedto the re I sp'ective diners wouldr'beplacedo'n the revy v volvingl table and "any-particular dish could thus; be brought immediately adjacent or op-j sons having to change his position. I obtain these objects by thecombination of the four metal legs with the improved mechanism-and the improved double table.

The improved 7 connection shaft, 1, is

screw-threaded at both ends. The upper end is screwed into the steel plate or ball-bearing, 7, and extends downward through a hole, 18, in the lower table, 3, and revolves in the lower table and the lower steel plate or ball-bearing, 7. The improved connection shaft, 1, is also hollow, so that an electric cord, wire or medium may be run through it and connected with an electric cooking plate, or such other electric utensil ,as may 7 be desired to be used on the top surface of the table.' The legs, 2, represent two of the four metal legs or standards which support the table and are constructed from metal tubing with threads at both ends to permit the upper end to be screwed into the metal flanges, 13, which are securely fastened by bolts to the underneath surface of the lower table, 3, which is cross-veneered in a substantial manner to acquire strength without the use of arms, beams and frames, by the superimposition of one layer of wood upon another in immediate contact with the grain of the wood of eachlayer across and diagonal to the grain of'the wood of the other layer. A rubber track, 4, is fastened to the upper surface of the cross-veneered lower table, 3, near its perimeter, to enable the silent running therein of the steel ball, ballbearing casters, 5, which are fastened to the under-surface of the upper or revolving table, 20. The steel ball, ball-bearing casters,-

5, come into contact with the rubber track, 4, only when the weight of the load placed on the top of the revolving table, 20, is unequally distributed thereon. The plates or bearings, 7- 7, are two steel plates in each of which is a groove corresponding with the groove in the other plate, which groove is filled with steel balls, 6. The plate is then boredand the lower plate or bearing, 7, is

' secured to the. center of the upper surface of the lower cross-veneered. table, 3, and the upper plate or bearing, 7 is secured to the center of the upper or revolving table, 20,

. by screws or bolts in such manner that the grooves of the plates or bearings, 7-7, di-

rectly oppose eachother ;.thus rendering the revolutions of the revolving table, 20, both noiseless and free from friction. The nut, 8, is screwed on to the lower end of the connecting shaft, 1, and thus the nut, 8, and the shaft, 1, in combination, hold the revolving table, 20, and the cross-veneered lower table, 3,; in juxtaposition to each other, except for a space of about one-quarter of aninch between their respective opposing surfaces in a manner so secure that the entire contrivance can be rolled on edge without anything coming apart, thus facilitating easy placement on or removal from an ordinary dining table or other object or surface on which it is desired to use it. The washer, 9, on the connecting shaft, 1, between'the nut, 8, and the under surface of the cross-ve neered lower table, 3, is to prevent binding. The rim, 10, of wood or other substantial material, is installed in 1a groove'one-half' inch in depth on the under-surface of the upper or revolving table, 20, and ata uniform distance of one inch from the perimeterof said upper or revolving table, 20. This serves a doublepurpose: in that, it strength ens the table, and also hides the mechanism and lower table from view. The screws or bolts. 11, which are four 1n number, secure the two plates or bearings, 77, to the respective surfaces of the upper and lower tables to which they are fastened. The rubber' tips, 12', are'screwed into metal reducers, let, which in turn are screwed on to the lower ends of the legs, for the purpose of protecting from injury the surface of the diningtable, or other object upon which the invention is placed. When the long legs," 2% are used, steel ball, ball-bearing casters are screwed to the lower ends of the metal reducers, 14. The four metal flanges, 13, are

bored and threaded for the reception ofthe threads of the legs, 2, and the flanges, 13, are secured to the underneath surface of the cross-veneered lower table, 3, by the bolts, 15. The molding, 17, is fastened to the underneath surface of the upper or revolving table, 20, between the rim, l0, and the ed eor perimeter of the revolving table, 20. T e hole, 18', in the center of the lower bearing plate, 7, and the lower cross-veneered table, 3, is the aperture through which the'improved hollow connecting shaft, 1, extends and revolves.

When the combination-improved-knockdown-revolving table is substantially constructed, combined and connected together as hereinbefore described, without arms, beams and frames, its weight will be so light that a child canlift' and handle it, yet its strength will enable it to carry a load of a ton or more, and being thus entirely free from arms, beams and frames, it is neat in appearance and easy to keep clean, and can be rolled about on its edge on the floor or other surfaces from one point to another without. coming apart; whilein operation it will revolve smoothly, steadily and noiselessly without binding, and equally as well when loaded as when no weight is upon it.

I claim:

The combination of a revolving table comprising a main section having top and legs, a revolving section having a top, with downturned flanges at periphery thereof, a'pivot pin connecting the centers of said sections, a ball bearing in two parts, one part attached to each section and surrounding said pivot pin, a circular track posltioned near periphery and on the top of said'main section, and balls mounteclin hearings on theunderside of the revolving top to roll on said 15 track, all as substantially described.

In witness whereof, I have hereunto subscribedmy name in the presence of two witnesses. v I

GUST J. DAHL. [L. s'.] Witnesses: 4-

MAUDE KIRKLAND, R. E. ROBERTSON. v i 

